span.chckon,
span.chckoff {
	background-image: url('sprite_checkbox.png');
	background-repeat: no-repeat;
	display: inline-block;
	height: 16px;
	width: 16px;
	position: relative;
	bottom: -1px;
}
span.chckoff {
	background-position: 0px 0px;
}
span.chckoff:hover {
	background-position: 0px -16px;
}
span.chckon {
	background-position: 0px -48px;
}
span.chckon:hover {
	background-position: 0px -32px;
}
